The Outer Bristol Channel Marine Habitat Study (OBCMHS) was a multifaceted project involving scientific investigation, interpretation and education in an area with potential marine aggregate resources. more

The Outer Bristol Channel Marine Habitat Study (OBCMHS) was a multifaceted project involving scientific investigation, interpretation and education in an area with potential marine aggregate resources.
Data was obtained on five geophysical and biological research cruises (2003-2005). The study area was approximately 2400 km². Eleven 30-40 km x 1 km wide corridors, covering 15% of the area, where examined using multibeam, sidescan and sub-bottom profiling. These were ground-truthed with the analysis of macrofauna from 137 grab and 13 trawl locations, sediments from 141 stations, and images from 20 video and camera tows.